CN103184950A - Multi-cylinder internal combustion engine and method for operating such a multi-cylinder internal combustion engine - Google Patents
Multi-cylinder internal combustion engine and method for operating such a multi-cylinder internal combustion engine Download PDFInfo
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- CN103184950A CN103184950A CN2013100540787A CN201310054078A CN103184950A CN 103184950 A CN103184950 A CN 103184950A CN 2013100540787 A CN2013100540787 A CN 2013100540787A CN 201310054078 A CN201310054078 A CN 201310054078A CN 103184950 A CN103184950 A CN 103184950A
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- cylinder head
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- outlet pipe
- wall section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
- F01N13/105—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust Silencers (AREA)
Abstract
A linearly aligned four-cylinder internal combustion engine system operated in a 1-3-4-2 sequence, comprising a cylinder head connected with a cylinder block wherein each cylinder has at least one exhaust port to discharge exhaust gasses via an exhaust gas discharge system, for which an exhaust gas pipe is connected at each exhaust port; wherein the exhaust gas pipes of the cylinders that merge in stages into a common exhaust gas pipe and the exhaust gas discharge system emerges outside of the cylinder head. Thus exhaust gas from consecutive ignitions in adjacent cylinders is separated for a distance throughout the engine head to reduce mutual influencing in adjacent cylinders with consecutive ignitions.
Description
The cross reference of related application
It is the German application of submitting on January 2nd, 2,012 102012200014.3 that the application requires preference, and its full content is included reference in regard to all purposes hereby.
Technical field
Background technique
Many cylinders explosive motor of motor vehicle generally includes at least one cylinder head of being connected to the cylinder block attachment face and along four cylinders of cylinder head longitudinal axis straight line, and wherein each cylinder is equipped with ignition mechanism and starts outside ignition mechanism.Each cylinder comprises at least one relief opening usually to discharge exhaust from cylinder by exhaust discharge system, and wherein each outlet pipe is connected to each relief opening.Phrase in the text of following specification " motor " particularly, comprises the petrol engine that is equipped with outside ignition mechanism.Motor has at least one cylinder head and a cylinder block, and its attachment face at them connects together to form each cylinder that is called as the firing chamber.
The valve actuation mechanism that cylinder head usually is used for keeping being called as valve gear is controlled the inflation variation.In inflation changed, combustion gas sucked by suction port by relief opening discharge and fresh mixture or fresh air, fill the firing chamber.The inflation that reciprocating type valve is typically used as the motor run duration changes control unit and opens and closes air inlet and relief opening, and wherein purpose is to open fast enough big flow cross section and keeps the low-resistance windage loss cylinder of becoming estranged to fill and maximize.Therefore, cylinder usually assembles two or more air inlets or relief opening.The manifold downstream exhaust gas can be sent into turbine and/or one or more exhaust after treatment system of exhaust turbine supercharger subsequently.The energy that burning discharges sucks the filling that air quantity changes the firing chamber by changing the filling adjustment of firing chamber by adjusting suck air pressure and changing.Low-load relies on high choke (choking), and the low-load region inflation changes loss so increases.
Petrolic working procedure goes means of choke to be the use of variable valve gear, can change valve stroke and/or control time more or less whereby.The control time of variation valve realizes that by using the camshaft regulating device can twist camshaft at a certain angle with respect to bent axle whereby, the permission control time shifts to an earlier date or delays and the unlatching duration of constant gasification door.In this changeable air valve control method, crank angle range is depended in valve overlap, and wherein exhaust is not also closed when air inlet is held open.With the high capacity overlapping period, " washing away loss " can take place at valve, wherein the fresh air of part suction is flowed through cylinder and is not had participation burning subsequently.Changeable air valve control reduces valve overlap in response to improving rotational speed.For the motor by the exhaust turbine supercharger supercharging, big valve overlap is suitable for improving maximum moment and improves the irregular operation characteristic under low rotational speed.The pressure that exists under the low rotational speed between inlet end and the exhaust end descends, and keeps and uses effectively washing away and guaranteeing that bigger cylinder is filled and therefore higher energy of fresh air countercylinder.Big valve overlap may be closed from the evening of at least one exhaust valve, was suitable for reducing pump gas equally and reduces the inflation that causes thus changing loss.
Inflation changes has proved that the outlet pipe of countercylinder is debatable.Outlet pipe merges to the meeting point generation deterioration of common outlet pipe and the exhaust of set cylinder heat from each relief opening to exhaust discharge system, and this is made up of shorter and shorter outlet pipe design in present motor.More and more, exhaust discharge system is at least partially integrated in the cylinder head in order to participate in the cooling that provides in the cylinder head and to reduce needs to the heat predominant material of costliness.Short outlet pipe can cause changing the common shortcoming of using engine cylinder in inflation, particularly, washes away the effect that reaches by residual gas and may reduce.Therefore in the in line engine with the combustion order operation, the cylinder to adjacent ignition order has adverse effect because different institutions falls over each other to discharge exhaust in the inflation of cylinder variation.
For example, exhaust is overflowed from cylinder and was entered another cylinder cause two different institutions to fall over each other to discharge combustion gas from the 4th cylinder before its exhaust valve closing.Various means can be used for solving the problem that is caused by short outlet pipe, and these means comprise by opening valve a little later or closing valve a little earlier and shorten opening the endurance of exhaust valve.Usually under low engine speed by keeping opening the use that valve improves big valve overlap a little later in the shut-in time, this method keeps engine moment under low engine rotary speed; However, reduce fuel consumption by pump gas under low loading range and valve endurance that shortens of causing causes energy fault under the high-engine rotational velocity.
Summary of the invention
The inventor this recognize this problem be the outlet pipe that shortens intrinsic and recognize above some problems of proposing solve by the outlet pipe isolation to a certain degree that is provided at cylinder adjacent on the ignition order.Further, this method can relax adjacent cylinders interactional problem aspect the inflation variation, keep big valve overlap or the advantage of long EXO endurance simultaneously, to minimize by high rotation speed and/or the energy fault about causing with the minimizing of hanging down load operation pump gas.
Description of drawings
Fig. 1 is the demonstration mode of execution that system is discharged in exhaust in cylinder head.
Fig. 2 is the diagram that the demonstration mode of execution of system is discharged in exhaust.
Fig. 3 is that the mode of execution of Fig. 2 is at the cross-sectional view of the longitudinal edge of cylinder head.
Embodiment
In motor, be commonly used to keep valve gear during cylinder head.Change in order to control inflation, motor often uses control unit and actuator that control unit is worked.Under the background that inflation changes, combustion gas are introduced by suction port by relief opening discharge and fresh mixture or fresh air, fill the firing chamber.Change in order to control inflation, reciprocating type valve is used as control unit, almost in all four stroke engine.Reciprocating type valve shakes to-and-fro motion and therefore opens and closes air inlet and relief opening at the motor run duration.Valve gear be can mobile valve valve actuation mechanism.Valve actuating apparatus usually comprises the camshaft that is furnished with a plurality of cams on it.
The function of valve gear is air inlet and the relief opening that opens and closes cylinder in the appropriate time, thereby wherein purpose is to open enough big mobile horizontal cross section fast to use may filling with exhaust of fresh mixture to discharge accordingly to keep the low-resistance windage loss mistake maximization cylinder in gas inflow and the outflow.Therefore, cylinder is usually adaptive two or more air inlets or a relief opening.
At least one cylinder head cathetus as the motor of purport of the present invention is arranged four cylinders, and it has at least one relief opening to discharge exhaust by exhaust discharge system.The outlet pipe of cylinder merges to common outlet pipe stage by stage, forms exhaust and discharges system.Turbine and/or one or more exhaust after treatment system of exhaust turbine supercharger suitably sent in exhaust subsequently in the manifold downstream.
The energy that burning discharges is adjusted by the filling that changes the firing chamber, and the amount of generation is regulated and can be caused in petrol engine than have higher fuel consume and more inefficient in corresponding diesel engine.The common pressure that sucks air by the closure adjustment in intake duct of load control sucks the air total amount with change to carry out.Higher choke is used in low load, and therefore changing loss in low load area inflation increases.
In four-in-line engine, its cylinder can be by the control system operation that has with the sequentially fired instruction of 1-3-4-2, and the inflation of cylinder changes may have adverse effect to the cylinder of its front in the ignition order.For example, the exhaust of overflowing from the 4th cylinder may enter the 3rd cylinder before its exhaust valve closing, cause two different institutions competitively to discharge combustion gas from the 4th cylinder.If exhaust valve for example, begins to open in the inflation variation, it is poor to make high pressure towards burning end leading high pressure level in cylinder between firing chamber and vent systems, causes the combustion gas high speed flow to enter outlet pipe through relief opening.From the existence of the exhaust of the 4th cylinder, the exhaust of adding rising shifts to an earlier date pulse (exhaust lead pulse), may cause the deterioration of air outlet duct system in the 3rd cylinder.Sequentially fired cylinder with 1-3-4-2 is favourable, because discharge system to this ignition order optimization according to the exhaust of specification, reaches particularly the desired positive role about described ignition order accordingly.
This pressure-driven process that flows is more strong, and the moment of generation is more high, and is accompanied by high pressure peak value-be also referred to as exhaust and shifts to an earlier date that pulse-it transmits along outlet pipe.Further along the process of inflation variation, the most of balance of the pressure that cylinder is interior and outlet pipe is interior is so that combustion gas move owing to piston and discharge at the moment.What however, initially exist in the 3rd cylinder shifts to an earlier date the deterioration that pulse can cause air outlet duct system from the exhaust of the 4th cylinder and the exhaust of rising.
This problem can reduce by using cylinder head as shown in Figure 1, and wherein the outlet pipe of cylinder merges to common outlet pipe stage by stage, and the exhaust system that discharges is exposed in the outside of cylinder head.The longitudinal axis is the axle aimed at of cylinder (Fig. 1 114) and the transverse axis axle that is perpendicular to the longitudinal axis and is parallel to the cylinder head matrix (Fig. 1 144) in this article.Cylinder head and exhaust are discharged system and are described in further detail in Fig. 2, and exhaust is herein discharged system and illustrated separately.Cross section of discharging system in the exhaust at cylinder head edge shown in Figure 3.Advantageously integrated most of exhaust is discharged system in one or more cylinder head, thereby merges outlet pipe as much as possible in cylinder head self, allows compact structure more and intensive encapsulation and obtains cost thus and the weight benefit.These benefits can further help turbosupercharger and exhaust gas recycling system.
In the mode of execution of Fig. 1, the air that enters motor can be by turbocharger compressor 138 compressions before entering gas handling system.These air can allow to enter intake manifold for inflation in igniting chamber A, B, C, D and burning through suction tude 102 by air-cooler 136 coolings and at some air of closure 134 places subsequently.After the burning, exhaust can be discharged through 100 outflows of exhaust discharge system and from discharge tube 128, puts some exhausts at certain and may be recycled in the intake manifold or in the environment.
The mode of execution of motor can have at least one supercharging device.Supercharging device can, for example, be exhaust turbine supercharger and/or compressor.Particularly, the mode of execution with motor of at least one exhaust turbine supercharger that comprises turbine 124 is favourable, and wherein turbine is arranged in the exhaust discharge system and comprises that entry zone is in order to supply with exhaust.
Turbine on the further mode of execution of turbosupercharger can comprise compressor and be arranged in identical rotating shaft (not shown).Flow of hot exhaust can supply in the turbine and expand, and turbine and make the axle rotation releases energy.Can be used for driving the compressor that may be arranged in equally in the rotating shaft by exhaust stream at turbine place and the final energy that discharges in rotating shaft.The cylinder supercharging takes place when compressor is carried and compress the pressurized air that supplies to it.If be suitable for, the pressurized air cooling then can be provided, Ya Suo combustion air was pressurized air-cooler 136 coolings before entering cylinder whereby.This supercharging is mainly in order to improve the performance of motor.By being combustion process pressurized air, the air quality bigger in each working stroke can supply to each cylinder.The result is, fuel mass and middle pressure therefore can be enhanced, thereby increases the power of motor and do not change capacity and produce more advantageous property and measure.Therefore, collections of loads can be shifted to more high capacity, and for identical vehicle-surroundings condition, specific fuel consumption reduces under high capacity more.Mode of execution also can use exhaust gas recycling system.Further mode of execution may not have turbosupercharger and also not have exhaust gas recycling system.
Exhaust is discharged system 100 and is connected to the cylinder block (not shown) that comprises along four cylinders of the longitudinal axis 112 straight line of cylinder head 144 at attachment face.Each cylinder has at least one relief opening 150 to discharge exhaust from cylinder by exhaust discharge system, and outlet pipe 110 and 106 is connected to each relief opening for this reason.
The mode of execution of following motor is favourable, and wherein each cylinder has at least two relief openings and comes from the cylinder block exhaust.The quick drain that needs big as far as possible flow cross section during inflation changes, for alap maintenance outwards flow exhaust the choke loss and guarantee effective discharging of exhaust.Therefore advantageously cylinder is equipped with two or more relief openings.
In the present circumstances, each cylinder (A, B, C, D) have two of merging in 4 independent outlet pipes and expose relief opening 150: inboard row tracheae 106 exposes from cylinder B and C respectively, and outermost outlet pipe 110 exposes from cylinder A and D respectively, and they itself are to merge stage by stage.The outlet pipe that is used for each cylinder block gas port exposes in cylinder head 144, and other mode of executions can each cylinder have single tracheae or each cylinder has many outlet pipes.The inboard row tracheae 106 of two inner cylinders (B and C) is in first binding site 116 merges to local vent 122 in the cylinder head 144.Local vent 122 merges in the single common outlet pipe 126 at 120 places, meeting point with the outlet pipe of two outermost cylinders (A and D) subsequently.In Fig. 1, this occurs in cylinder head 144 inside.Merge by this way, the cylinder of two adjacent ignition orders keeps being separated from each other the longer time at exhaust end, makes the length (and the length passed through of corresponding exhaust) thus of the outlet pipe that connects these cylinders increase.The exhaust system that discharges changes in inflation and alleviates influencing each other of the cylinder that caused by shorter outlet pipe.Therefore, three independent outlet pipes exposed from cylinder head 144 before converging to single outlet pipe 126.Therefore outermost outlet pipe 110 is isolated with inboard row tracheae 106 and is stretched out cylinder head until them.This method also can be used for different the arrangement or ignition order, wherein can reach this effect by at first merging the igniting outlet pipe at interval with 360 ° of crank angles (CA).
In arbitrary mode of execution, shorten the time of opening and suppress cylinder influencing each other on inflation changes, this shortening of opening the time can reduce, because merge from the outlet pipe of cylinder adjacent in the ignition order, minimizes the exhaust that enters the cylinder of previous igniting from a cylinder.Further, can utilize the advantage of the EXO time of big valve overlap or length, and not have the cylinder of two adjacent ignition orders on inflation changes, to hinder mutually.
Thereby outermost outlet pipe 110 separates by outer wall section 146 with two inboard row tracheaes 106.Outermost outlet pipe 110 separates by outer wall section 146 with two inboard row tracheaes 106.Two inboard row tracheaes 106 segment distance separately in cylinder head and inner wall section 148, inner wall section 148 terminates to form local vent 122 at first binding site, 116 places.
A mode of execution can also be configured to hold the motor with two cylinder heads, for example, if cylinder is divided into two cylinder group.Merge outlet pipe with method described herein and cause inflating the improvement of variation and the improvement that moment provides equally.This mode of execution has benefited from the inner wall section 148 of termination in cylinder head 144 and distance, delta d＞0 of cylinder head outer wall 118.
The motor mode of execution also can use the inner wall section that is projected in the exhaust discharge system, and it has from the lateral separation of cylinder head outside, Δ d as shown in Figure 1.If Δ d 〉=15mm, this configuration is best.Following other mode of executions of motor are favourable, and wherein inner wall section is preferably distance, delta d 〉=25mm apart from the distance, delta d 〉=20mm of the outer wall of cylinder head.
The length that increases distance, delta d and minimizing inner wall section can allow compacter cylinder head design.Shorter inner wall section sharply merges two outermost outlet pipes in local vent, and therefore productive set point apart from the shorter lateral separation of cylinder.
In some mode of executions of motor, advantageously outer wall section exceeds inner wall section extended distance Δ s, wherein Δ s 〉=5mm in a lateral direction in the cylinder head outside.Special mode of execution can use value be Δ s 〉=10mm.Δ s 〉=10mm advantageously in the special mode of execution of motor.
Even being presented under the individual cases when the direction of outer wall section at least one cylinder head outside exceeds inner wall section, computer support simulation extends 5mm or more for a long time, also can reach satisfied torque factor, wherein distance, delta s chooses the point that wall section upper edge outside direction reaches farthest in the exhaust discharge system perpendicular to the longitudinal axis measurement of at least one cylinder head and as reference point.
It is more many that the outstanding length of outer wall section exceeds inner wall section, and the travel distance that will have more significant outlet pipe is separated and more perceptible telling on.Just, the cylinder of igniting can produce littler influencing each other and resistance in the inflation variation continuously.
Therefore, the mode of execution of following motor can be favourable, and the outlet pipe of cylinder merges to common outlet pipe forming integrated gas exhaust manifold (not shown) in cylinder head, and can keep exhaust discharge system and be completely integrated in all advantages in the cylinder head.
Yet the mode of execution of following motor can be favourable, wherein two the local vent of inboard cylinder and the outlet pipe of two outermost cylinders merge to the outside common outlet pipe of cylinder head, as Fig. 1, equally also in Fig. 2, set forth.The plan view of system 100 is discharged in a part of exhaust that Fig. 2 illustrates motor first mode of execution.The drawing plane parallel is in the attachment face (not shown).Be projected into exhaust and discharge the outside that the outer wall section of system stretches out cylinder head, make Δ s＞Δ d.Exhaust circulation is crossed outer wall section 146 and is separated from each other up to them and leaves cylinder head 144, makes the exhaust system that discharges expose with the form of three air outlets from cylinder head 144.Three outlet pipes merge to cylinder head 144 downstreams and therefore in the common outlet pipe 126 of cylinder head outside.
Further, for the common outlet pipes 126 in cylinder head 144 outside formation, the mode of execution of following motor is favourable, and the outer wall section 146 that wherein is projected in the exhaust discharge system stretches out cylinder head 144 outsides.According to this mode of execution, the outlet pipe 122 of two outermost and part and 110 exhaust stream even after leaving cylinder head, be separated from each other by outer wall section 146.In the mode of execution of this motor, exhaust is discharged system and is also exposed (Fig. 3) with the form of three air outlets from cylinder head.(not shown) is projected into the outside that the outer wall section in the exhaust discharge system can extend the arrival cylinder head, wherein Δ s=Δ d in other embodiments.
The common trait of above-mentioned two mode of executions is that exhaust is discharged system's module design and comprised manifold part and external manifold or the manifold part that is integrated in the cylinder head.The external manifold part also can form by the assembly that is arranged in the exhaust discharge system, for example the import cover of turbine or external manifold.
With the same among Fig. 1, the cylinder head of Fig. 2 have four cylinders (A, B, C, D), four cylinders are arranged along the longitudinal axis 112 of cylinder head.Therefore, cylinder head has two outermost cylinders (A and D) and two cylinders the most inboard (B and C).Each cylinder has two relief openings 150, and relief opening 150 is connected to the outlet pipe 106 and 110 that system is discharged in exhaust, in order to discharge exhaust.Cylinder (A, B, C, D) outlet pipe 106 and 110 merges in the common outlet pipe 126 stage by stage, and wherein at first the inboard row tracheae 106 of two cylinders the most inboard (B and C) merges in the local vent 122 and this local vent 122 merges in the common outlet pipe 126 with the outermost outlet pipe 110 of two outermost cylinders (A and D).
For this reason, two outer wall sections 146 extend fartherly than inner wall section 146 in the outside of cylinder head 108 directions, wherein two of each outer wall section 146 two outermost outlet pipes 110 of making outermost cylinder (A and D) and the most inboard adjacent cylinder (B and C) inboard row tracheaes 106 partly are separated from each other, and reach exhaust and discharge in the system 100, and inner wall section 146 makes the inboard row tracheae 106 of two cylinders the most inboard (B and C) partly be separated from each other and reach in the exhaust discharge system.
In this embodiment, the inboard row tracheae 106 of two cylinders the most inboard (B and C) merges in cylinder head in the local vent 122, and the inner wall section 148 that wherein is projected in the exhaust discharge system is Δ d apart from the lateral separation of cylinder head outer wall 118.Yet, be projected into the outer wall section 146 in the exhaust discharge system 100, extend beyond the cylinder head outer wall 118 of cylinder head, make the local vent 122 of two cylinders the most inboard (B and C) and the outermost outlet pipe 110 of two outermost cylinders (A and D) merge in the cylinder head outside in the common outlet pipe 126 to form meeting point 120.
In mode of execution shown in Figure 2, exhaust is discharged system 100 and is exposed (Fig. 3) from cylinder head with the form of three air outlets.The exhaust stream of outermost outlet pipe 110 and local vent 122, even after leaving cylinder head, be separated from each other by outer wall section 146.Therefore outer wall section 146 modularizations form, and wherein cylinder head 144 forms a local part under each situation, and are arranged in import cover 140 another local parts 147 of formation of the turbine 124 in the common outlet pipe 126.
To a certain extent, exhaust is discharged system 100 and is partially integrated in the cylinder head, and the manifold part 162 that wherein is positioned at cylinder head is replenished by being positioned at cylinder head 144 outer manifold parts 160, comprises external manifold part 160.
Consider the mode of execution among for example Fig. 1 and Fig. 2, wherein the merging of outlet pipe occurs in the cylinder head outside, and the outlet that system is discharged in exhaust is the form of three air outlets, as shown in Figure 3.The mode of execution of following motor is favourable, wherein two local vent of inboard cylinder and the outlet pipes of two outermost cylinders (A and D), in the outlet from the cylinder head to the outside, formation is positioned at the pipe cross section on the line that overlaps with cylinder head outer wall 118, makes linear cross section have the distance that equates apart from attachment face.
Fig. 3 illustrates exhaust in the mode of execution shown in Figure 1 and discharges system 100 from the outlet of cylinder head.The explanation that provides only is additional to outside Fig. 1 and Fig. 2 declaratives, and part please refer to Fig. 1 and associated description in addition.Same reference numerals is used for same components.Fig. 2 is that assembly is from the projection shown in a plurality of planes.
Two the center local vent 122 of inboard cylinder and the outlet pipes 106 and 110 of two outermost cylinders laterally closing in the outlet from the cylinder head to the outside, form and are positioned at a line and have apart from the linear cross section of the equidistance of attachment face 166.
Cylinder head can be equipped with coolant jacket and be used for liquid cooling, and can comprise the following coolant jacket 168 that is configured between outlet pipe and the cylinder head attachment face 166, with can be arranged into outlet pipe one side on the relative last coolant jacket 170 of coolant jacket 168 down.The connecting passage 172 that is arranged on down between coolant jacket 168 and the last coolant jacket 170 can be interval between the outlet pipe, as coolant channel.
Above-mentioned line route makes the compact structure of cylinder head, the particularly formation of low height cylinder head, and wherein the height of cylinder head is measured perpendicular to attachment face.It is long-pending that this can cause reducing lid, and therefore reduce weight and cost.
Reach the cylinder head outside for outer wall section, outer wall section can be formed by the single-piece with at least one cylinder head, and is wherein not outstanding and protruding from cylinder head at the wall section of motor installment state.Alternately, outer wall section also can built modular.Mode of execution also can have the outer wall section of built modular, and wherein cylinder head forms a local part and external manifold or another local part of branch pipe part branch formation.
If the outer wall section built modular, and cylinder head forms a local part and the entrance region of turbine forms another local part in each case, and then the mode of execution of motor can be further favourable.
Claims (19)
1. an internal combustion engine system comprises
The cylinder head that is connected with cylinder block at attachment face;
Along four cylinders of the longitudinal axis straight line of described cylinder head, wherein each cylinder has at least one relief opening to discharge exhaust by exhaust discharge system, connects outlet pipe at each relief opening for this reason;
The outlet pipe of wherein said cylinder merges in the common outlet pipe stage by stage;
Wherein said exhaust is discharged system and is exposed from described cylinder head outside;
With
Have instruction for the outside control system of lighting a fire of the sequence starting cylinder of 1-3-4-2, wherein start from the cylinder of outermost cylinder along longitudinal axis counting and the numbering of described cylinder head.
2. system as claimed in claim 1, the inboard row tracheae of the outlet pipe of wherein said cylinder be included in that first binding site merges two is to form local vent, and this local vent is in meeting point and two outermost outlet pipes merging, wherein:
Described outermost outlet pipe separates with described local vent by outer wall section; And
Described two inboard row tracheaes are separated from each other by inner wall section; And
Described first binding site is created in the described cylinder head; And
Described meeting point is positioned at than the farther position of described first binding site along horizontal direction apart from described cylinder.
3. system as claimed in claim 2, wherein said inboard row tracheae merges in the described local vent in described cylinder head.
4. system as claimed in claim 2, wherein reach described inner wall section in the described exhaust discharge system apart from the lateral separation of described cylinder head outside greater than 0.
5. system as claimed in claim 4, the lateral separation of wherein said inner wall section is greater than 15mm.
6. system as claimed in claim 2, wherein said outer wall section stretches out the farther distance of described cylinder head in a lateral direction than described inner wall section, and this farther distance is greater than 5mm.
7. system as claimed in claim 2, wherein said two and two outermost outlet pipes the most inboard merge in the common outlet pipe in the described cylinder head, form integrated exhaust and discharge system.
8. system as claimed in claim 2, wherein said two the most described local vent of inboard cylinder and the outlet pipe of described two outermost cylinders merge in the single common outlet pipe of described cylinder head outside.
9. system as claimed in claim 8, the described outer wall section that wherein reaches in the exhaust discharge system extends to described cylinder head outer wall.
10. system as claimed in claim 8, the described outer wall section that wherein reaches in the exhaust discharge system extends beyond described cylinder head outer wall in a lateral direction.
11. system as claimed in claim 2, wherein said two the most described local vent of inboard cylinder and the outlet pipes of described outermost cylinder, in the outlet from described cylinder head to the outside, formation is positioned at the pipe cross section on the straight line, makes linear cross section have the distance that equates apart from attachment face.
12. system as claimed in claim 2, wherein said outer wall section is by modular, and wherein in each case, described cylinder head forms a local part and external manifold partly forms another local part.
13. system as claimed in claim 2, wherein said outer wall section is by modular, and wherein in each case, described cylinder head forms another local part of the hood-shaped one-tenth of import of a local part and turbine.
14. system as claimed in claim 2, it further comprises at least one supercharging device.
15. a method, wherein:
Order with 1-3-4-2 is lighted a fire to the cylinder of four cylinder explosive motors; With
Exhaust is discharged by cylinder head and is taken place; With
To separate generation with the first binding site place of exhaust in cylinder head of the 3rd cylinder from second; With
Common pipe is gathered in exhaust to be taken place after first binding site.
16. as the method for claim 15, wherein the set of exhaust occurs in the cylinder head outer wall.
17. as the method for claim 15, wherein the set of exhaust occurs in cylinder head outer wall place.
18. as the method for claim 15, wherein the set of exhaust occurs in outside the cylinder head outer wall.
19. as the method for claim 15, wherein the set of exhaust is undertaken by the local part of turbine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012200014A DE102012200014A1 (en) | 2012-01-02 | 2012-01-02 | Multi-cylinder internal combustion engine and method for operating such a multi-cylinder internal combustion engine |
| DE102012200014.3 | 2012-01-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184950A true CN103184950A (en) | 2013-07-03 |
| CN103184950B CN103184950B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310054078.7A Active CN103184950B (en) | 2012-01-02 | 2013-01-02 | Multi-cylinder internal combustion engine and method for operating such a multi-cylinder internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9234490B2 (en) |
| CN (1) | CN103184950B (en) |
| DE (1) | DE102012200014A1 (en) |
| RU (1) | RU2623353C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952989A (en) * | 2017-05-26 | 2018-12-07 | 铃木株式会社 | The cylinder head of internal combustion engine |
| CN113404605A (en) * | 2020-03-17 | 2021-09-17 | 本田技研工业株式会社 | Cylinder head of multi-cylinder engine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9574522B2 (en) * | 2014-08-27 | 2017-02-21 | GM Global Technology Operations LLC | Assembly with cylinder head having integrated exhaust manifold and method of manufacturing same |
| KR20160070275A (en) * | 2014-12-09 | 2016-06-20 | 현대자동차주식회사 | Apparatus for emitting exhaust gas of vehicles |
| FR3060659B1 (en) * | 2016-12-21 | 2021-03-12 | Renault Sas | CYLINDER HEAD WITH AT LEAST ONE COOLING DUCT FITTED ON ITS EXHAUST SIDE |
| EP3578782B1 (en) * | 2017-03-23 | 2021-04-21 | Mazda Motor Corporation | Engine control device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103184950B (en) | 2017-04-12 |
| RU2623353C2 (en) | 2017-06-23 |
| RU2012157755A (en) | 2014-07-10 |
| DE102012200014A1 (en) | 2013-07-04 |
| US9234490B2 (en) | 2016-01-12 |
| US20130167803A1 (en) | 2013-07-04 |
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